Why is the tech community obsessed with coding out of work? Many other professions don't take their craft as a hobby, and I don't think we need to.

It seems that you want to force yourself to code personal projects, and enjoy it. Why is that? Why not instead look for something that fulfils you and you enjoy without forcing yourself?

We change with time and our tastes change with us. Things that we used to enjoy we don't anymore, and we might discover and pick up new hobbies. You might develop that sense of wonder, discovery and mastery in a completely new field, without the pressure of mixing it with your work.